Oiling device for die-stocks.



H.J.sUgLzEN. OILING DEVICE FOB. DIE STOCK@ APPLICATION FILED MAY 7,1913,`

UNTTFD STATES PATENT GFFIC.

HERMAN JOSEPH SUELZEN, OF CHICAGO, ILLINOIS.

OILING :DEVICE FOR DIE-STOCKS.

To all 'whom t may concern.'

Be it known that l, HERMAN JOSEPH SUELZEN, a citizen of the UnitedStates, residing at Chicago, Illinois, have invented certain new anduseful Improvements in Oiling Devices for Die-Stocks, of which thefollowing is a specification.

The essential object of this invention is to provide a new and improveddevice for feeding oil to the dies which are used for threading pipe orthe like, and in the specific form of the invention depicted in thedrawings, the same is shown as being used in connection with a die stocksuch as that shown and described in my pending application for patent,Serial No. 7 45,840 filed February 3, 1913. It should be understood,however, that this oiling device may be used in conjunction with anyform of die stock. In my aforesaid application, Serial No. 745,840,there is shown an automatic oiling device, whereas this applicationrelates to a manuall -o erated oilinO mechanism. t5

In the drawings, Figure 1 is a vertical sectional View of the die stockand the oiling device, the lower part of the die stock being shown inelevation; Fig. 2 is a detailed sectional View on the line 2 2, Fig. l;and Fig. 3 is a vertical sectional view of a modiication.

The die stock is provided with a body 1 for supporting the dies 2, thebody 1 being preferably hollow and being also polygonal in crosssection, each side of the polygon being formed by a rectangular wall,and conical ends 6 and 9 extend from the polygonal prism to theoperating levers. The dies 2 are provided with the screw-tln'eadedopenings 3, which openings are in axial registration with other openings4, and the pipe to be threaded passes through an opening 4 and that die2 which is in registration therewith, it being understood that, asusual, the pipe to be threaded is firmly held in position by a vise, thestock and die being adapted to rotate about the pipe as an axis. Forfurther details of the construction of the die stock itself, referenceis made to my said pending application Serial No. 745,840.

Each die 2 is provided with a duct 30 which terminates at a pointapproximately midway between the two ends of the threaded opening 3. Thebody of the stock 1 is provided with a conduit or duct 31, there beingas many conduits 31 as there are dies Specification of Letters Patent.

Application 1ed May 7, 1913.

Patented Feb. 10,1914. Serial No. 765,988.

in the stock, that specific embodiment of the invention herein shownbeing provided with three dies 2 and with three conduits 31. Below eachconduit 31 is a small chamber 32, and a nipple 33 is screwed into thelower end of said chamber, said nipple being perforated and theperforation therethrough being in effect a continuation of the duct 30.The die 2 itself is recessed at 34 and the nipple 33 projects into saidrecess, said nipple being adapted, therefore, to assist in holding thedie 2 in place. A cylindrical pin provided with the knob 3G, isrotatable within each duct 31, and the end 37 of said pin is beveled.lhen the pin is in the position shown in Fig. 1, the oil can pass fromthe duct 31 through the chamber 32 and nipple 33 into the duct 30, whichlastmentioned duct conveys it directly to the pipe or other article uponwhich the threads are being cut. If, however, the pin 35 be rotated 180degrees the beveled end 37 will close the mouth of the chamber 35 andwill prevent the passage of oil from the conduit 31. to the duct 30.

The upper operating lever' 38 is provided with a cylindrical cavity 39.Said hollow lever 38 is secured to the plug 40, which said plug 40 isprovided with a short duct 41, which said duct 41 being adapted toregister from time to time with one or the other of the chiots 31. InFig. 2 of the drawings, the plug is shown in such position that duct 40registers with that conduit 31 which eX- tends toward the right in saidfigure, but the plug 40 may be turned so as to connect its duct 48 witheither of the other conduits 31 shown in the drawings.

lThe conical head 9 terminates in the collar 42 within which the sleeve43 is retained, said sleeve being held in position by the setscrew 44which passes through a perforation in the collar 42 and which may bereceived either within a tap-hole in the sleeve 43 or otherwise, theobject being to hold the sleeve 43 both against rotation and againstlongitudinal. movement. The plug 40 contains an annular recess 45 nearits base, and within said recess the two halves of a split ring 40 areadapted to be received, said ring serving as a washer to engage thesleeve 43 and thus prevent the plug 40 and the hollow lever 38 fromdropping out of position. Although longitudinal movement. of the plug 40is thus prevented, it will be obvious that said members are free torotate within the sleeve 43 and collar 42. The wall of the hollow lever38 is provided with a perforation 47 and the sleeve 43 is perforatedalso at 48, these perforations 47 and 48 being necessary to permitcommunication between the duct 4l and the conduits 3l.

rEhe plug 40 is provided with a duct or conduit 49 which is preferablycut or bored along the line of axial rotation of the plug, the lower end50 of said perforation being reduced in size so as to provide a valveseat for the small ball 51 which is kept normally seated by the helicalspring 52 which eX- tends from said ball 50 to a short rod or pintle 58which is received within the plug 40 and disposed substantially at rightangles to the plugs aXis of rotation. It will be obvious from Fig. Qthat the pintle serves also to lock the plug to the hollow shaft 39 andthus malte sure that the plug and shaft will rotate in unison.

At its upper end the hollow shaft 89 is adapted to receive a sleeve orcoupling 54, which member 54 is provided with an o'set 55 within whichthe cap or screw 56 is placed. At the upper end the coupling 54 isinteriorly screw-threaded at 57. The hollow handle 58 carries a threadedcollar 59 which collar is screwed within the end 57 of the coupling 54.A washer GO, the construction of which is best shown in F ig. l, isplaced between the Yhandle 58 and the hollow operating lever 39, saidwasher 60 being provided with a tapering valve seat 6l against which theball 62 is adapted to rest. The washer GO is provided with a hollow off"set 63 perforated at 64, said perforation 64 being normally closed bythe ball 65 which is pressed by the helical spring 66 against the mouthof said perforation G4. A chamber 67, which is intermediate the washer60 and the hollow handle 58 communicates with the interior 68 of thehollow handle by means of a duct G9. The plunger TO is adapted toreciprocate within the chamber 68 of the hollow handle 58 being movedfrom right to left, Fig. l against the resistance of the helical spring7l, and returning to the position shown in said ligure because of theexpansion of said spring. lVithin the chamber 39 of the hollow lever 38is a tube 72, one end of which is received within the plug 40 so as toregister with the duct 4l, and the other end of which is received withinthe washer G0 so as to project partly into the offset 63, the helicalspring 66 having one end resting upon an end of said tube 72.

When it is desired to use the device, the screw or plug 56 is removedand a quantity of oil is poured into the chamber 89, this filling beingpreferably done whilethe operating lever is in horizontal position. Thenthe lever 38 is in horizontal position the ball 62 will roll off theconical valve seat 6l so that as oil is poured in the oil will till notonly the chamber 39 but also the chamber G8. The oil, however, cannotescape through the duct 49 for that is normally closed by the ball valve5l. Neither can the oil normally enter the tube 72, the entrance towhich is closed by the spring controlled by the valve 65. As statedbefore, this invention is not an automatic oiling device but requiresmanual operation in order to feed the oil from the chamber or chamberswithin which it is received to the die where the oil is required, andthis manual operation which result-s in so feeding the oil is usuallyperformed when the operating lever 38 is in vertical position. To feedthe oil the operator forces the plunger TO toward the left7 Fig. l, andthis movement of the plunger forces a quantity of the oil through theperforation G4, for the pressure upon the plunger will be sufhcient tounseat the spring controlled by the valve which normallyk closes theentrance to the tube 72. The oil which is thus forced past the springcontrolled by the valve at the top of Fig. l drops by gravity throughthe pipe 72 and thence passes successively through the duct 4l, theperforations 47 and 48, and thence Aiters the conduit 3l which conveysthe oil to the duct 30, which duct 8O leads directly to thescrew-threaded tap-hole 3 Yof the die 2. By rotating the plug 40 withinthe sleeve 43 and collar 42 the duct 4l of the plug is carried intoregistration with any one of the conduits 3l desired, and in this mannereach of the three dies with which the stock shown in F ig. l isprovided, may be supplied with oil, the particular die to which the oilis conveyed depending merely upon the position of the plug 40 within thebody of the stock.

In Fig. 3 a modification is shown and in said figure the invention isdepicted as being applied to a stock which has but a single die insteadof a plurality of dies. ln this form of the invention the duct 4l andconduits 8l are omitted and a pipe or tube T5 extends directly from thetube 72 to the die 2.

As the oil is forced out of the chambers 39 and 68 by the repeatedactions of the plunger 70, it is obvious that a partial vacuum wouldgradually be created within said hollow chambers and the operation ofthe device somewhat impaired were not a vacuum relief valve provided,and it is the spring-controlled ball valve 5l which operates as suchvacuum relief, for when the expulsion of the oil from the hollowchainbers 39 and 68 through the tube 72 has created a partial vacuumwithin the operating lever 38 and its handle 58, the pressure of the airfrom the exterior atmosphere will unseat said ball valve and air fromthe llO atmosphere may enter thro-ugh the air hole 50, although no oilcan escape through said port 50.

It will be obvious that, besides the modification shown in Fig. 3, manychanges in the details of construction and arrangement of parts can bemade without departing from the scope of the invention.

I claim as my invention: f

1. A tool of the character described comprising a base, a collarprojecting therefrom, a sleeve within the collar, a hollow shaft, a plugwith which said shaft is in connection, and means engaging said plug andsaid sleeve thereby to prevent longitudinal movement of said plug andsaid shaft with respect to said sleeve.

2. A tool of the character described comprising a hollow shaft, a plugtherewithin, a tube leading to said plug, a check valve closing theentrance to said tube, a plunger adapted to operate upon the oil withinthe hollow shaft and torce same past said check valve and into saidtube, and a conduit ex tending from said plug to the point where the oilis to be used.

8. A tool oi' the character described comprising a hollow chamber, atube connected with said chamber, there being a check valve intermediatesaid tube and said chamber to seal the port between the same, a secondvalve through which the oil is adapted to enter said chamber, a plungerwithin said chamber, said check valve being adapted to unseat and saidsecond-mentioned valve being adapted to seat upon movement of saidplunger, and a conduit extending from said tube to the point where theoil is to be used.

4L. In a tool oi the character described, the combination of a movableoil reservoir, a conduit extending from said reservoir to the pointwhere the oil is to be applied, and valves in said reservoir and in saidconduit.

5. ln a tool of the character described, the combination of an oilreservoir, a chambered member with which said member is in connection, achannel leading from the chamber in said member to the point where theoil is to be applied, a valve in said channel, a valve intermediate saidoil reservoir and said chamber, and a plunger adapted to unseat saidvalve.

6. In a tool of the character described, the combination ot an oilreservoir, a chambered member with which said member is in connection, achannel leading from the chamber in said member to the point where theoil is to be applied, a valve in said channel, a valve intermediate saidoil reservoir and said chamber', a plunger adapted to unseat said valve,and means to force the oil from said reservoir past said valve.

7 ln a tool of the character described, the combination of a hollowchamber, a washer having an offset, said oiset being provided with aport, a check valve normally closing said port, a tube adapted to conveythe oil from said port, a second valve through which the oil is adaptedto enter the reservoir, and means within the reservoir adapted to expelthe oil therefrom, said means being adapted simultaneously to unseatsaid lirst-mentioned valve and to seat said second-mentioned valve.

8. In a tool of the character described, the combination of a die stockadapted to hold a plurality of dies, a conduit extending to each of saiddies, an oil reservoir, a plug, said plug having a port adapted tocoinmunicate with said oil reservoir, means for rotating the plug withinthe stock and thereby present said port plug to each ot said conduits,and means to force the oil from said reservoir through said port andinto one of said conduits.

9. In a tool of the character described, the combination oi an oilreservoir, provided with a port thro-ugh which air is adapted to enter,a va ve adapted to' close said air vent, a channel through said air ventthrough which the oil is expelled 'from said reservoir, and means forexpelling the oil through said channel.

l0. In a tool of the character described, the combination of a stockhaving a plurality of conduits therewithin, a plug adapted to rotatewithin said stock, said plug having a port adapted to be presented toeach of said conduits, a sleeve within which said plug is received, saidsleeve being perforated opposite to said conduits, said plug having anannular channel, and a washer received within said channel andcooperating with said sleeve thereby to prevent longitudinal movementoit' said plug with respect to said sleeve.

ln testimony whereof I hereunto atlix my signature in the presence oftwo witnesses.

HERMAN JOSEPH SUELZEN.

TWitnesses ELLIOTT R. GoLDsMrrn, Ron'r. KLoTZ.

Copier nf this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

